I have read in an article, a while ago, that a lightning bolt induces voltage spikes in conductive objects i.e. lampposts plumbing systems, electrical power networks, etc.
I have two wires in parallel at a distance r apart. They are unequal in length. The current carrying primary generates a magnetic field B at distance r. What is the area related to the secondary through which B passes? Is it correct to assume the thickness times the length of the secondary? All...